PureLoop's DynaShape optimizes shredder pressure, rotor speed
Key Highlights
- DynaShape automatically matches hydraulic pressure and rotor speed to material characteristics, replacing manual adjustments.
- The system increases throughput by up to 10 percent, offering higher efficiency and consistent product quality.
- It adjusts intake apertures and ram speed dynamically, optimizing processing of various plastics and composites.
- Recipe saving feature allows quick startup and reproducibility of optimal settings for different materials.
- PureLoop's integration with Erema's PredictOn system enhances wear monitoring, especially for abrasive materials like glass fiber-reinforced plastics.
By Ron Shinn
PureLoop GmbH displayed new technology that automatically matches a shredder’s hydraulic pressure and rotor speed to the material being shredded. The process has previously been a manual operation.
The new system is called DynaShape. PureLoop showed it at K 2025 on the company’s 10-year-old ISEC evo technology, which combines a shredder and extruder.
“DynaShape regulates our recycling machine to get the perfect settings. It does it as precisely as a professional technician with 10 years of experience,” said PureLoop Managing Director Manfred Dobersberger, in a press release. “Our customers get the advantage of higher throughputs with consistent quality and a noticeable reduction in operator workload.”
PureLoop estimates up to 10 percent increase in throughput using DynaShape.
The ISEC evo shredder-extruder combination has a double-feed ram system and conical transition to the cylinder. It can process clumps, guillotined rolls of film, film shreds, glass fiber-reinforced plastics and fibers into pellets. DynaShape makes adjustments depending on the shape and bulk density of material being fed into the shredder.
With DynaShape, the ram system adjusts its speed to the rotor load, while the hydraulically adjustable intake apertures adjust automatically.
PureLoop said that consistent melt pressure and optimal extruder screw filling level means there is no oxidation degradation in the melt. Also, the temperature of the melt can be lowered automatically as needed by setting a maximum temperature for each plastic being processed. DynaShape reacts immediately to increases in temperature.
DynaShape settings can be saved as recipes to speed startups.
“We are positive that DynaShape will unleash even more potential in the future,” Dobersberger said.
PureLoop, based in Ansfelden, Austria, is part of the Erema Group.
Also at K 2025, PureLoop demonstrated the intelligent assistance system called PredictOn: Plastification Unit, developed by Erema. The system monitors the wear condition of the extruder and barrel. PureLoop modified the Erema system to also monitor the conical intake zone between the shredder and extruder. This is especially useful when processing abrasive materials such as injection molded parts containing glass fibers.
Contact:
Erema North America Inc., Ipswich, Mass., 9778-356-3771, www.erema.com